Symptoms of Conjoined Twins

Most conjoined twins are born early (prematurely). This means their lungs probably have not finished developing, and breathing problems are common.

Conjoined Twins Diagnosis

In most cases, doctors see that twins are conjoined during a routine ultrasound late in the first trimester of pregnancy or in the second trimester. Seattle Children’s Prenatal Diagnosis and Treatment Program provides care for pregnant women and their conjoined twins.

Once your doctor can see by ultrasound where the twins are joined, the doctor will have more information on the structures the twins may share. Other imaging studies can also take pictures of the twins before birth. They include echocardiography and prenatal MRI (magnetic resonance imaging).

After birth, conjoined twins need many other imaging studies and tests to learn about their health. Your doctor will want to find out more about their anatomy, or structure, and how well their bodies work.

Studies and tests your babies need will depend on where the twins are joined and their health. A few of the common tests for conjoined twins are:

Seattle Children’s provides healthcare without regard to race, color, religion (creed), sex, gender identity or expression, sexual orientation, national origin (ancestry) or disability. Financial assistance for medically necessary services is based on family income and hospital resources and is provided to children under age 21 whose primary residence is in Washington, Alaska, Montana or Idaho.